Chinese scientist Zhang Yongzhen, known for publicly sharing the Covid virus genome in 2020, protested in Shanghai after being barred from his lab. His key card was canceled, and the lab sealed off. Sleeping outdoors in protest, the situation drew public outcry. Zhang's team was later allowed to resume work, but a dispute over payment and employment continued. It is unclear if this is linked to his earlier defiance of a government gag order. The government had no immediate comment, and some accounts of the protest were deleted from the internet by government censors.